90200811 has 8 divisors (see below), whose sum is σ = 120715920. Its totient is φ = 59909792.

The previous prime is 90200801. The next prime is 90200813. The reversal of 90200811 is 11800209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90200811 - 2¹¹ = 90198763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90200813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55080 + ... + 56693.

It is an arithmetic number, because the mean of its divisors is an integer number (15089490).

Almost surely, 2^90200811 is an apocalyptic number.

90200811 is a deficient number, since it is larger than the sum of its proper divisors (30515109).

90200811 is a wasteful number, since it uses less digits than its factorization.

90200811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112045.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 90200811 is about 9497.4107524104. The cubic root of 90200811 is about 448.4735290594.

The spelling of 90200811 in words is "ninety million, two hundred thousand, eight hundred eleven".